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From: HAO CHEN GUI <guihaoc@linux.ibm.com>
To: Segher Boessenkool <segher@kernel.crashing.org>
Cc: gcc-patches <gcc-patches@gcc.gnu.org>, David <dje.gcc@gmail.com>,
	"Kewen.Lin" <linkw@linux.ibm.com>,
	Peter Bergner <bergner@linux.ibm.com>
Subject: Re: [PATCH v4, rs6000] Implemented f[min/max]_optab by xs[min/max]dp [PR103605]
Date: Thu, 9 Jun 2022 09:24:00 +0800	[thread overview]
Message-ID: <3e038980-615e-b465-d2a0-010ba1205fe0@linux.ibm.com> (raw)
In-Reply-To: <20220608132435.GN25951@gate.crashing.org>

Hi,

On 8/6/2022 下午 9:24, Segher Boessenkool wrote:
> But it regresses the code quality generated with -ffast-math (because
> the new unspecs arent't optimised like standard rtl is).  This can be
> follow-up work of course -- and the best direction is to make fmin/fmax
> generic, even!  :-)

fmin/max will be folded to MIN/MAX_EXPR when fast-math is set. So the
behavior doesn't change when fast-math is set.


  reply	other threads:[~2022-06-09  1:24 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-08  3:28 HAO CHEN GUI
2022-06-08  7:44 ` Kewen.Lin
2022-06-08 13:24 ` Segher Boessenkool
2022-06-09  1:24   ` HAO CHEN GUI [this message]
2022-06-09 15:07     ` Segher Boessenkool
2022-06-10  0:47       ` HAO CHEN GUI

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